Requirements For Alcoholometers And Alcohol Hydrometers, Referred To By The Eec

Original Language Title: požadavky na lihoměry a hustoměry na líh, označované značkou EHS

Read the untranslated law here: https://portal.gov.cz/app/zakony/download?idBiblio=52816&nr=31~2F2002~20Sb.&ft=txt

31/2002 Sb.



DECREE



The Ministry of industry and trade



of 11 December 1997. January 2002,



laying down the requirements on alcoholometers and alcohol hydrometers, known

the EEC



Change: 260/2003 Coll.



The Ministry of industry and trade of the Czech Republic, determined in accordance with section 27 of the

Act No. 506/1990 Coll., on weights and measures, as amended by Act No. 121/2000 Coll.,

(hereinafter referred to as the "Act") to implement section 6 (1). 2 of the Act:



§ 1



This Decree lays down the requirements on alcoholometers and alcohol hydrometers, which

are used to determine the alcoholic strength of mixtures of water and ethanol and

are referred to by the EEC, (hereinafter referred to as "alcoholometers and alcohol hydrometers").



§ 2



(1) alcoholometers and alcohol hydrometers can be instead of official designation

markers laid down special legal regulation ^ 1) marked by an

EEC pattern approval and EEC initial verification, whose graphic design

provides for a separate legal regulation, ^ 2) only if they meet the requirements

set out in the annex and which has been verified by the procedures laid down

special legislation. ^ 2)



(2) the method of determining the volume of a volumetric concentration of ethyl alcohol and

How to calculate the amount of alcohol lays down specific legislation. ^ 3)



§ 3



This Decree shall take effect on the date of publication of the sectoral annex for

the measuring instrument to the Protocol to the Europe Agreement establishing an association between the

The Czech Republic on the one hand, and the European communities and their

Member States, of the other part, on conformity assessment and acceptance of

industrial products in the collection of international treaties, or on the date of entry

the Treaty of accession of the Czech Republic to the European Union entered into force,

If the day earlier.



Minister:



doc. Ing. Gregr, r.



XIII.



1. definition of the measuring instruments



1.1 Alcoholometers are glass gauges that indicate the mass fraction of

alcohol or alcoholic strength by volume, in a mixture of water and ethanol.

These gauges are described as mass alcoholometers or volume

alcoholometers, depending on what is measured. On alcohol hydrometers are glass

a measuring instrument designed to measure the density of the mixture of water and ethanol.



1.2 Gauge defined in this Decree are graduated in

reference temperature of 20 ° C, in accordance with the values calculated according to the

special legal regulation ^ 3).



1.3 this meters are graduated for reading in the plane of the free

the horizontal surface of the liquid.



2. Description of gauges



2.1 alcoholometers and alcohol hydrometers are glass measuring instruments which are

consists of a cylindrical body, the bottom of which is cone-shaped, or

hemispherical so that it does not entrap air bubbles and hollow cylindrical

the stalk of fused to the upper part of the body, its upper end is sealed.



2.2 the entire external surface of every instrument must be symmetrical about its main

axis. Cross-section must not exhibit any sudden change.



2.3 the lower part of the body must contain the loading material, the purpose of which

is to offset the weight of the gauge.



2.4 the Shank must be graduated on a cylindrical support well fixed

to the inside of the stem.



3. Design principles



3.1 the Glass used for the manufacture of measuring instruments must be transparent and without

any defects which could negatively affect the reading of the

the scale. The glass shall have a coefficient of cubic expansion (25 +/-2).

10E-6 CE-1.



3.2 the loading material shall be fixed in the lower part of the gauge. Then,

What is the modified gauge leaves for one hour in a horizontal position

at 80 ° C and then cooled in this position, when immersion is a must

hover so that its vertical axis deviating by 1 degree and 30

minutes.



4. The scale



4.1 No gauge must not have more than one scale of the type referred to in

section 4.5 or 4.6.



4.2. The scale and the inscriptions shall be marked on a support having a smooth and

the matte finish. This support must be well fixed to a place in the stem and

reference tags should be made so that each scale and offset

the support given to the stem was obvious. Support, the scale and the inscriptions

they may not show any traces of deformation, discoloration or burned in

as a result of exposure to temperatures of 70 degrees C for 24 hours.



4.3 the scale marks shall be:-situated in planes perpendicular to the axis

gauge-black and marked clearly and indelibly; out of range

nominal scales scale-marks may have a different color, fine and

aligned and about the same thickness not greater than 0.2 mm.



4.4 short Length scale-marks shall be at least one-fifth, length

medium scale-marks at least one third of the length of the long and brands

the scale of at least half the circumference of the stem.



4.5. Alcoholometers shall have nominal scales graduated by weight

percentage or percentage of alcohol by volume. Their range may not

exceed 10% of the volume or weight of alcohol. The value of the scale interval

shall be 0.1%. Each scale shall include 5 to 10 additional

lines for the upper and lower limits of the nominal range.



4.6 on the ethyl alcohol shall have nominal scales graduated by kg/m3.

Must cover a range not exceeding 20 kg/m3. The value of the scale intervals

must be 0.2 kg/m3. Each scale shall include 5 to 10 additional

the tick marks at the upper and lower limits of the nominal range. However, the scale must not be

shall not exceed 1000 kg/m3.



5. Graduation and numbering



5.1 for alcoholometers, every tenth brand on a scale, starting from the one

the end of the nominal scale, shall be a long. Medium length

It must be between each successive pair of long marks and four

short tags between each long brand and the closest medium-long

mark. Long tag must be numbered.



5.2 on alcohol hydrometers, every fifth mark must be long, starting from the

one end of the nominal scale. Between two consecutive

the following long marks must be four short of the marker.

Must be numbered only fifth and tenth brand.



5.3 Marks indicating the limits of the nominal scale shall be described in full

figures. On alcohol hydrometers can be other graduations

marked with short figures eg. only the numbers after the decimal point

with a comma.



6. Classification and principal dimensions of the measuring instruments



6.1 the meter must be in one of the following classes of accuracy:



-Class i: the length of the scale Division must be at least 1.5 mm.



Measuring instruments in this class shall not have a thermometer.



-Class II: the length of the scale spacing shall be 1.05 mm at least.



Measuring instruments in this class may incorporate a thermometer.



-Class III: the length of the scale Division must be at least 0.85 mm.



Measuring instruments in this class may incorporate a thermometer.



6.2. The outer diameter of the body of any of the gauge must be between 20 to 40 mm.

External diameter of the stem shall be at least 3 mm for class I and II, and at least

2.5 mm for class III. The length of the stems must extend at least 15 mm above the

the highest scale mark. Cross section of the stem must be a constant, at least in

5 mm below the lowest scale mark.



7. The inscriptions



inside the gauge must be legibly and indelibly marked

the following inscriptions.



-class I, II or III,



-kg/m3 or volumetric percentage or percentage, by weight,



-20 ° C,



-ethanol,



-the name or identifying mark of the manufacturer,



-the identification number of the meter,



-approval mark.



7.2 Weight measuring instrument, expressed to the nearest milligram, may

be marked on the body of the instrument.



8. the maximum permissible errors and verification



8.1 the maximum permissible error for alcoholometers and alcohol hydrometers shall be:



-Class I +/-half scale interval for each reading measured on the scale,



-Class II and III +/-one scale interval for each reading measured on the scale



8.2. Verification shall be carried out in at least three points of the range

nominal scales.



9. Thermometers used in determining alcoholic strength



9.1. Thermometers incorporated in the gauge used in determining the content of

alcohol.



If a measuring instrument used to determine alcoholic strength belongs to class

II or III, the thermometer gratuated in glass casing in it

can be built-in.



9.1.1 the thermometer must have the value of the interval 0.1 ° C or ° C 0.2 or 0.5

C and need not have any scale mark at 0 ° C.



9.1.2 the minimum mean scale spacing shall be: 0.8 mm in the case of

thermometers graduated (0.1 and 0.2) C, 1.0 mm in the case of

thermometers graduated to 0.5 ° C.



9.1.3 the thickness of the lines shall not be more than one fifth the length of the

scale interval.



9.1.4 the maximum permissible error shall be: +/-0.10 St. (C), if the

the thermometer is graduated to 0.1 ° C; +/-0.20 C,

If the thermometer is graduated to 0.2 or 0.5 ° C st.

(C).



9.1.5 during the approval process of the built in error shall be

thermometer fixed at least three points of the scale.



9.2. Thermometers not incorporated in the gauge used in determining the content of

alcohol.



9.2.1. If the measuring instrument used to determine alcoholic strength belongs to

in class I, the thermometer employed in conjunction with it shall be:-either of the metallic

resistance type, enabling the temperature of the mixture of water and alcohol with a maximum permissible

error +/-0.10 ° C,-or of the mercury-expansion type with glass casing,

with graduated to 0.1 ° C or after 0.5 degrees C the mercury

thermometers shall have a scale mark at 0 ° C, the minimum scale interval


the scale must be 0.8 mm and the width of the scale marks must not be greater than the

one fifth of the scale spacing.



The maximum permissible error, plus or minus one graduation must be

the scale.



9.2.2 If a measuring instrument used to determine alcoholic strength belongs to

to class II or III, the thermometer employed in conjunction with it shall be

the thermometer mercury-expansion type with a glass casing.



9.2.2.1 thermometer shall be graduated to value 0.1 or 0.2 ° C st.

(C) or 0.5 degrees C this thermometer must have a tag of 0 degrees C.



9.2.2.2. The minimum scale spacing shall be:-0.8 mm in the case of

thermometers graduated to 0.1 or 0.2 ° C ° C,-1.0 mm

in the case of thermometers graduated to 0.5 ° C.



9.2.2.3 the thickness of the lines shall not be more than one fifth the length of the

of the interval.



9.2.2.4 maximum permissible error shall be: +/-0.10 St. (C), if the

the thermometer is graduated to 0.1 ° C, +/-0.20 C,

If the thermometer is graduated to 0.2 or 0.5 ° C st.

(C).



10.



On the back of alcoholometers and alcohol hydrometers are leaving in their upper

one third of the space for the initial EEC verification mark. According to a special

Law ^ 2) must make the initial EEC verification as a result

Special marking requirements for glass instruments, consist of a series of

characters that have the following meanings:



-the letter "e"



-the last two digits of the year of the initial EEC verification



-the identification letter or letters of the country in which the initial EEC

verification is carried out,



-the identification number of the authentication authority



If the marking done by sandblasting, the letters and figures must be

used so as not to disturb their readability.



1) Decree No. 262/2000 Coll., which ensures consistency and accuracy

measuring instruments and measurements.



2) Decree No. 332/2000 Coll., laying down some of the procedures in the

type-approval and verification of measuring instruments, called marker set

EEC.



3) section 3 of Decree No. 142/1997 Coll., on technical requirements for the manufacture,

storage and processing of ethyl alcohol, as amended by Decree No 82/2000 Sb.